/* ===================================================================
   校订札记 / 页面作用域 .page-news
   =================================================================== */

.page-news {
  --news-cut: 16px;
  --news-rule: rgba(17, 19, 24, .06);
  --news-sheet: #FDFDFA;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(17, 19, 24, 0) 0,
    rgba(17, 19, 24, 0) 31px,
    var(--news-rule) 31px,
    var(--news-rule) 32px
  );
  color: var(--ink);
  font-family: var(--font-body);
}

.page-news .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--graphite);
}

.page-news .crumbs__item {
  color: var(--graphite);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .crumbs__item[href]:hover {
  color: var(--ink);
  border-bottom-color: var(--cyan);
}

.page-news .crumbs__sep {
  color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(20px, 4vw, 34px) 0 clamp(38px, 5vw, 64px);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan-deep);
}

.page-news .news-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(48px, 11vw, 104px);
  line-height: .94;
  letter-spacing: -.035em;
  color: var(--ink);
}

.page-news .news-hero__subtitle {
  display: inline-block;
  margin: 14px 0 0;
  padding: 4px 10px 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink);
  background-image: linear-gradient(to top, var(--amber-soft) 42%, rgba(0, 0, 0, 0) 42%);
}

.page-news .news-hero__lead {
  margin: 22px 0 0;
  max-width: 48ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: clamp(26px, 4vw, 36px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-news .news-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .news-hero__stat dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-news .news-hero__stat dd {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .news-hero__figure {
  margin: 0;
}

.page-news .news-hero__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  clip-path: polygon(
    var(--news-cut) 0,
    100% 0,
    100% calc(100% - var(--news-cut)),
    calc(100% - var(--news-cut)) 100%,
    0 100%,
    0 var(--news-cut)
  );
}

.page-news .news-hero__figure .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: end;
  }
}

/* ---------- 当季札记 ---------- */
.page-news .news-latest {
  padding-top: clamp(38px, 5vw, 64px);
}

.page-news .news-latest__intro {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .news-layout {
  display: grid;
  gap: 26px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-news .news-side__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--graphite);
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-filter__btn {
  appearance: none;
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, .6);
  color: var(--graphite);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.1;
  text-align: left;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-filter__btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.page-news .news-filter__btn.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-news .news-filter__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .news-side__hint {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-news .news-stream {
  display: grid;
  gap: 16px;
}

/* 札记卡片 */
.page-news .note-card {
  position: relative;
  display: grid;
  gap: 10px 22px;
  padding: 20px 22px 20px 26px;
  background: var(--news-sheet);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
  transition: box-shadow var(--dur) var(--ease);
}

.page-news .note-card:hover {
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.page-news .note-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
}

.page-news .note-card[data-band="rebate"]::before { background: var(--amber); }
.page-news .note-card[data-band="hall"]::before { background: var(--cyan-deep); }
.page-news .note-card[data-band="event"]::before { background: var(--graphite); }
.page-news .note-card[data-band="limit"]::before { background: var(--amber); }
.page-news .note-card[data-band="guide"]::before { background: var(--green); }

.page-news .note-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.page-news .note-card__no {
  font-size: 24px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--line-strong);
}

.page-news .note-card__when {
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--graphite);
}

.page-news .note-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.42;
  color: var(--ink);
}

.page-news .note-card__sum {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .note-card__more {
  margin-top: 12px;
}

.page-news .note-card__more summary {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-deep);
}

.page-news .note-card__more summary::-webkit-details-marker {
  display: none;
}

.page-news .note-card__more summary::before {
  content: "+";
  font-size: 15px;
  line-height: 1;
}

.page-news .note-card__more[open] summary::before {
  content: "–";
}

.page-news .note-card__more summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .note-card__more p {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan-soft);
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
}

@media (min-width: 700px) {
  .page-news .note-card {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 0 24px;
  }

  .page-news .note-card__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-right: 16px;
    border-right: 1px dashed var(--line);
  }

  .page-news .note-card:nth-child(even) {
    margin-left: clamp(0px, 3.5vw, 48px);
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .news-side {
    position: sticky;
    top: 104px;
  }

  .page-news .news-filter {
    flex-direction: column;
    align-items: stretch;
  }

  .page-news .news-side__hint {
    margin-top: 20px;
  }
}

/* ---------- 专题系列 ---------- */
.page-news .news-topics {
  background: var(--ink);
  color: var(--on-ink);
}

.page-news .news-topics .eyebrow {
  color: var(--cyan);
}

.page-news .news-topics .section-head__title {
  color: var(--paper);
}

.page-news .news-topics__intro {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--on-ink);
}

.page-news .news-topics__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-news .news-topics__figure .figure__frame {
  overflow: hidden;
  border: 1px solid rgba(245, 245, 240, .18);
  background: rgba(245, 245, 240, .04);
}

.page-news .news-topics__figure .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 10 / 6;
}

.page-news .news-topics__figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--on-ink-soft);
}

.page-news .topic-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-news .topic-card {
  padding: 22px 22px 20px;
  background: rgba(245, 245, 240, .05);
  border-top: 2px solid var(--cyan);
  transition: background var(--dur) var(--ease);
}

.page-news .topic-card:hover {
  background: rgba(245, 245, 240, .09);
}

.page-news .topic-card--record { border-top-color: var(--cyan); }
.page-news .topic-card--rebate { border-top-color: var(--amber); }
.page-news .topic-card--hall  { border-top-color: var(--cyan-deep); }
.page-news .topic-card--event { border-top-color: var(--paper-2); }

.page-news .topic-card__no {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--on-ink-soft);
}

.page-news .topic-card__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .topic-card__desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--on-ink);
}

.page-news .topic-card__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .topic-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--on-ink);
}

.page-news .topic-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-news .topic-card__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(245, 245, 240, .14);
  font-size: 13px;
}

.page-news .topic-card__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(24, 224, 200, .42);
  transition: border-color var(--dur) var(--ease);
}

.page-news .topic-card__foot a:hover {
  border-bottom-color: var(--cyan);
}

@media (min-width: 760px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 版本节奏 ---------- */
.page-news .news-rhythm {
  padding-top: clamp(40px, 5vw, 68px);
}

.page-news .rhythm-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 38px);
}

.page-news .rhythm-grid__figure {
  margin: 0;
}

.page-news .rhythm-grid__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  clip-path: polygon(
    0 0,
    100% 0,
    100% 100%,
    var(--news-cut) 100%,
    0 calc(100% - var(--news-cut))
  );
}

.page-news .rhythm-grid__figure .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 9 / 5;
}

.page-news .rhythm-grid__figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--graphite);
}

.page-news .rhythm-facts__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .rhythm-facts__list {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .rhythm-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: var(--news-sheet);
}

.page-news .rhythm-fact dt {
  font-size: 14px;
  color: var(--graphite);
}

.page-news .rhythm-fact dd {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.page-news .rhythm-facts__note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-news .rhythm-facts .btn {
  margin-top: 20px;
}

@media (min-width: 900px) {
  .page-news .rhythm-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

/* ---------- 读者提问 ---------- */
.page-news .news-ask {
  padding-bottom: clamp(48px, 6vw, 80px);
}

.page-news .news-ask__intro {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .news-ask__grid {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
  margin-top: clamp(24px, 4vw, 38px);
}

.page-news .news-ask__figure {
  margin: 0;
}

.page-news .news-ask__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--amber-soft);
  clip-path: polygon(
    var(--news-cut) 0,
    100% 0,
    100% 100%,
    0 100%,
    0 var(--news-cut)
  );
}

.page-news .news-ask__figure .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 8 / 5;
}

.page-news .news-ask__list {
  display: grid;
  gap: 10px;
}

.page-news .ask-item {
  background: var(--news-sheet);
  box-shadow: inset 0 0 0 1px var(--line);
  padding: 4px 18px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: box-shadow var(--dur) var(--ease);
}

.page-news .ask-item[open] {
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.page-news .ask-item__q {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-news .ask-item__q::-webkit-details-marker {
  display: none;
}

.page-news .ask-item__q::after {
  content: "▾";
  float: right;
  margin-left: 12px;
  font-size: 12px;
  color: var(--cyan-deep);
  transition: transform var(--dur) var(--ease);
}

.page-news .ask-item[open] .ask-item__q::after {
  transform: rotate(180deg);
}

.page-news .ask-item__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .ask-item__a {
  padding: 0 0 16px;
  border-top: 1px solid var(--line);
}

.page-news .ask-item__a p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .ask-item__link {
  font-size: 13px;
}

.page-news .ask-item__link a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 154, 140, .4);
  transition: border-color var(--dur) var(--ease);
}

.page-news .ask-item__link a:hover {
  border-bottom-color: var(--cyan-deep);
}

@media (min-width: 860px) {
  .page-news .news-ask__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-news .news-ask__figure {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 全局微调 ---------- */
.page-news .btn {
  text-decoration: none;
}

.page-news img {
  max-width: 100%;
  height: auto;
}